CN114232480B - Quick construction method for turning over mould of bridge group of viaduct Gao Kongxin - Google Patents
Quick construction method for turning over mould of bridge group of viaduct Gao Kongxin Download PDFInfo
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- CN114232480B CN114232480B CN202111277787.2A CN202111277787A CN114232480B CN 114232480 B CN114232480 B CN 114232480B CN 202111277787 A CN202111277787 A CN 202111277787A CN 114232480 B CN114232480 B CN 114232480B
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- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000007787 solid Substances 0.000 claims abstract description 4
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 4
- 238000009415 formwork Methods 0.000 claims description 19
- 238000000034 method Methods 0.000 claims description 17
- 230000007306 turnover Effects 0.000 claims description 17
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 description 7
- 239000012528 membrane Substances 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000002808 connective tissue Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The application relates to a rapid construction method for a bridge Gao Kongxin pier group turning mold, which comprises the following steps: step one: constructing a bearing platform; step two: constructing a bottom solid section; step three: constructing a middle hollow section, binding annular steel bars on the upper surface of a bearing platform, and sequentially arranging three sections of templates along the vertical direction, wherein each section of template comprises an inner template and an outer template, and the inner template and the outer template are fixed through a fixing assembly; and fourthly, turning over the mould to construct, removing the fixing effect of the fixing component on the lower two-section mould plates, turning over and lifting the lower two-section mould plates each time, taking the third section mould plate as a stabilizing and supporting layer, and when the strength of the upper two-section concrete reaches the standard value, starting to dismantle the lower two-section mould plates, wherein the lower two-section mould plates are sequentially dismantled from bottom to top. The application increases the efficiency of the staff to disassemble each section of template.
Description
Technical Field
The application relates to a hollow pier construction method, in particular to a rapid construction method for a bridge Gao Kongxin pier group turning mold of a viaduct.
Background
The hollow pier is a pier with a hollow structure similar to that of a gravity pier in appearance, and has the characteristics of small sectional area, large section modulus, light dead weight and good structural rigidity and strength, and is widely used for high-bridges. The hollow pier construction method is various, and the turnover formwork construction method is one of the hollow piers.
The related art discloses a turnover formwork construction method, including pier body, interior template and adventitia board, the staff is at the in-process of installing each section template, generally through passing the pipeline with the screw rod, then all screw thread fit has the nut at the both ends of screw rod, with interior template, exterior sheathing and pier body centre gripping together through two nuts to realize the fixed to interior template and exterior sheathing.
With respect to the related art in the above, the inventors consider that there are the following drawbacks: staff all need get into the pier body inside at the in-process of installing and dismantling each section template, install and dismantle the nut of pier body inside, reduced staff's installation and the efficiency of dismantling each section template.
Disclosure of Invention
In order to increase the efficiency of the staff to disassemble each section of template, the application provides a rapid construction method for the turnover of the pier group of the viaduct Gao Kongxin.
The application provides a rapid construction method for a viaduct Gao Kongxin pier group turnover formwork, which adopts the following technical scheme:
A rapid construction method for a viaduct Gao Kongxin pier group turnover formwork comprises the following steps:
step one: constructing a bearing platform;
Step two: constructing a bottom solid section;
Step three: constructing a middle hollow section, binding annular steel bars on the upper surface of a bearing platform, and sequentially arranging three sections of templates along the vertical direction, wherein each section of template comprises an inner template and an outer template, a pipeline is arranged between the inner template and the outer template in a penetrating way, and a fixing assembly for fixing the inner template and the outer template is arranged in the pipeline; the fixing assembly comprises a fixing rod, a plurality of anti-falling blocks and a sleeve, wherein the fixing rod penetrates through the sleeve, the anti-falling blocks are slidably arranged at one end of the fixing rod, and the anti-falling blocks are abutted to the inner side wall of the inner template; the sleeve is arranged at the other end of the fixed rod and is abutted against the outer side wall of the outer die plate;
And fourthly, turning over the mould to construct, removing the fixing function of the fixing component on the lower two-section mould plates, detaching the lower two-section mould plates from the pier body, turning over and lifting the lower two-section mould plates through the crane, turning over and lifting the lower two-section mould plates each time, taking the third section mould plate as a stabilizing and supporting layer, and starting to detach the lower two-section mould plates when the strength of the upper two-section concrete reaches the standard value, wherein the lower two-section mould plates are detached from bottom to top in sequence.
Through adopting the technical scheme, in the process of fixing the inner template and the outer template, a worker passes one end of the fixing rod close to the anti-drop blocks through the pipeline, the adjusting assembly adjusts the anti-drop blocks to slide towards the directions away from each other, then pulls the fixing rod towards the directions close to the outer template, so that the side walls of the anti-drop blocks are all abutted against the inner side wall of the inner template, then the sleeve is arranged on the fixing rod, the inner side wall of the sleeve is abutted against the side wall of the outer template, and the anti-drop blocks and the sleeve have clamping effects on the inner template, the reinforcing steel bars and the outer template, so that the inner template and the outer membrane handle are fixed, and the worker does not need to enter the pier body in the process of installing the fixing rod; when inner formworks and outer formworks need to be disassembled, workers simultaneously adjust the anti-falling blocks through the adjusting assembly to enable the anti-falling blocks to slide towards the directions close to each other, the workers hold one end of the fixing rod close to the outer formworks, the fixing rod moves towards the directions close to the outer formworks in the pipeline, and accordingly the fixing rod is taken out from the pipeline, so that the workers do not need to enter the pier body in the process of disassembling the fixing rod, efficiency of installing and disassembling each formwork by the workers is improved, and labor intensity of the workers is reduced.
Preferably, an adjusting component is arranged in the fixed rod, and comprises a rotating rod, a rotating piece, a plurality of cranks and a plurality of sliding pieces;
The rotary rod is rotatably arranged in the rotary hole, and one end of the rotary rod, which is close to the outer template, extends out of the rotary hole;
The fixed rod is provided with a mounting hole at one end close to the anti-falling block, the rotating piece is arranged in the mounting hole and comprises a rotating shaft and a rotating disc, one end of the rotating shaft is fixedly connected with the rotating rod, and the rotating disc is fixed on the rotating rod; an end cover is fixedly arranged at one end, far away from the rotary hole, of the mounting hole, and the other end of the rotary shaft is rotationally connected with the end cover;
a plurality of sliding grooves are formed in the end cover; the sliding pieces are in one-to-one correspondence with the sliding grooves, and are in sliding fit with the sliding grooves; the crank with the slider one-to-one, the one end of crank with the rotary disk rotates to be connected, the other end of crank with the slider rotates to be connected.
Through adopting above-mentioned technical scheme, the staff stretches out in the one end of rotatory hole through rotating the rotary rod, the rotary rod drives the rotation axis and rotates, the rotation axis drives the rotary disk and rotates, the rotary disk drives a plurality of crank motions simultaneously, a plurality of cranks drive a plurality of sliding parts respectively and are close to each other or the direction of keeping away from each other in the inslot that slides, a plurality of sliding parts drive a plurality of anticreep pieces respectively and are close to each other or the direction of keeping away from each other slides, thereby make the staff all need not get into the inside of pier body 1 with the in-process of dismantling the dead lever at the installation, the efficiency of staff installation and dismantlement dead lever has been increased.
The sliding piece comprises a sliding block and a clamping block which are fixedly connected, the sliding block is matched with the sliding groove in a sliding mode, the clamping block is fixed on the side wall, close to the rotating disc, of the sliding block, the side wall of the clamping block is abutted to the inner side wall of the end cover, and the crank is connected with the clamping block in a rotating mode.
By adopting the technical scheme, the sliding groove has a guiding effect on the sliding block, so that the sliding stability of the sliding block is improved, and the sliding stability of the anti-falling block is improved; simultaneously, the clamping block and the anti-drop block have clamping effect on the end cover, so that the sliding stability of the anti-drop block is further improved.
Preferably, the side wall of the clamping block, which is away from the rotating shaft, is provided with a first arc surface, and the first arc surface is matched with the inner side wall of the mounting hole.
Through adopting above-mentioned technical scheme, the inside wall looks adaptation of first arc surface and mounting hole on the grip block to the stroke of sliding of grip block has been increased.
Preferably, a hand wheel is fixedly arranged on the rotary rod.
Through adopting above-mentioned technical scheme, the staff rotates the rotary rod through rotatory hand wheel, compares in direct rotation rotary rod, has laborsaving effect.
Preferably, the anti-falling block is provided with two chamfers at one end close to the rotating disk.
Through adopting above-mentioned technical scheme, the setting of chamfer can increase the distance that each anticreep piece slided towards the direction that is close to each other.
Preferably, one end of the anti-falling block, which is away from the rotating disc, is provided with a second arc surface.
Through adopting above-mentioned technical scheme, the setting of second arc face to make the anticreep piece under the less condition of distance that slides, the staff just can draw out the dead lever in the pipeline.
Preferably, the radius of the second arc surface is equal to the radius of the fixing rod.
By adopting the technical scheme, the radius of the second arc surface is equal to the radius of the fixed rod, and the sliding distance of the anti-falling block can be further reduced.
Preferably, the sleeve is in threaded engagement with the rotary rod.
Through adopting above-mentioned technical scheme, the staff can be through rotatory sleeve, just can adjust the distance between sleeve and the anticreep piece, has further increased the convenience of staff's installation and dismantlement dead lever.
Preferably, the sleeve is fixedly provided with a holding part.
Through adopting above-mentioned technical scheme, the staff rotates the sleeve through rotatory portion of gripping, has laborsaving effect.
In summary, the present application includes at least one of the following beneficial technical effects:
in the process of fixing the inner template and the outer template, a worker passes one end of a fixing rod close to the anti-falling blocks through a pipeline, adjusts the anti-falling blocks to slide towards a direction away from each other through an adjusting component, pulls the fixing rod towards a direction close to the outer template so that the side walls of the anti-falling blocks are all abutted against the inner side walls of the inner template, then installs a sleeve on the fixing rod so that the inner side walls of the sleeve are abutted against the side walls of the outer template, and the anti-falling blocks and the sleeve have clamping effects on the inner template, the steel bars and the outer template, so that the inner template and the outer membrane are fixed, and the worker does not need to enter the pier body in the process of installing the fixing rod; when the inner template and the outer template are required to be disassembled, a worker simultaneously adjusts the plurality of anti-falling blocks through the adjusting assembly so that the plurality of anti-falling blocks slide towards the direction close to each other, the worker holds one end of the fixing rod close to the outer template, and the fixing rod moves towards the direction close to the outer template in the pipeline, so that the fixing rod is taken out from the pipeline, the worker does not need to enter the pier body in the process of disassembling the fixing rod, the efficiency of installing and disassembling each template by the worker is improved, and the labor intensity of the worker is reduced;
The staff stretches out in the one end of rotatory hole through rotating the rotary rod, and the rotary rod drives the rotation axis and rotates, and the rotary shaft drives the rotary disk and rotates, and the rotary disk drives a plurality of cranks simultaneously and moves, and a plurality of cranks drive a plurality of sliding parts respectively and slide in the direction that the inslot of sliding is close to each other or is kept away from each other, and a plurality of sliding parts drive a plurality of anticreep pieces respectively and slide towards the direction that is close to each other or is kept away from each other to make the staff all need not get into the inside of pier body in the installation and dismantlement dead lever, increased staff's installation and dismantlement dead lever's efficiency;
The sliding groove has a guiding function on the sliding block, so that the sliding stability of the sliding block is improved, and the sliding stability of the anti-falling block is improved; simultaneously, the clamping block and the anti-drop block have clamping effect on the end cover, so that the sliding stability of the anti-drop block is further improved.
Drawings
Fig. 1 is a schematic structural view of a overpass Gao Kongxin pier group turnover mold according to an embodiment of the present application.
Fig. 2 is a schematic diagram of the assembly relationship of the outer die plate according to the embodiment of the present application.
Fig. 3 is a schematic structural view of a fixing assembly according to an embodiment of the present application.
Fig. 4 is a half cross-sectional view of fig. 3.
Fig. 5 is an enlarged partial schematic view of the portion a in fig. 4.
Reference numerals illustrate:
1. A pier body; 11. bearing platform; 2. an inner template; 21. a first inner template; 22. a second inner template; 3. an outer template; 31. a positioning plate; 311. a positioning block; 3111. a clamping groove; 3112. a mounting groove; 312. a second positioning hole; 32. a connecting plate; 321. a clamping block; 4. a pipe; 5. a fixing assembly; 51. a fixed rod; 511. a rotation hole; 512. a mounting hole; 513. an end cap; 5131. a slip groove; 52. an anti-falling block; 521. a second arc surface; 522. chamfering; 53. a sleeve; 531. a grip portion; 6. an adjustment assembly; 61. a rotating rod; 62. a rotating member; 621. a rotation shaft; 622. a rotating disc; 6221. a first rotating shaft; 63. a crank; 64. a sliding member; 641. a sliding block; 642. a clamping block; 6421. a second rotating shaft; 65. and a hand wheel.
Detailed Description
The application is described in further detail below with reference to fig. 1-5.
The embodiment of the application discloses a viaduct Gao Kongxin pier group turnover mould which is arranged on a pier body 1. Referring to fig. 1, the pier body 1 is a hollow pier, the pier body 1 extends along the vertical direction, a bearing platform 11 is integrally formed at the bottom end of the pier body 1, the bearing platform 11 increases the contact area between the bottom end of the pier body 1 and the foundation, and the stability of installation of the pier body 1 is increased. The pier body 1 has set gradually three sections templates along vertical direction, and three sections templates are arranged in proper order along vertical direction, and every section template all includes interior template 2 and outer template 3, is fixed through fixed subassembly 5 between interior template 2 and the outer template 3.
With continued reference to fig. 1, the inner mold plate 2 includes two first inner mold plates 21 and two second inner mold plates 22, the two first inner mold plates 21 are respectively abutted to two inner side walls of the pier body 1 in the length direction, the two second inner mold plates 22 are respectively abutted to two inner side walls of the pier body 1 in the width direction, and two ends of the first inner mold plates 21 are respectively abutted to side walls of the two second inner mold plates 22, which are close to each other, so that convenience of installing and dismantling the inner mold plate 2 by workers is improved.
Referring to fig. 1 and 2, the outer mold plate 3 includes two positioning plates 31 and two connecting plates 32, the two positioning plates 31 are symmetrically distributed on two outer side walls of the pier body 1 in the length direction, and the side walls of the two positioning plates 31 are respectively abutted to the two outer side walls of the pier body 1. Two positioning blocks 311 are uniformly formed on the side wall of each positioning plate 31, which is close to each other, and the inner side walls of the two positioning blocks 311 are respectively abutted to the side walls of the pier body 1 in two width directions. Two connecting plates 32 are respectively abutted to the side walls of the pier body 1 in the width direction, two positioning blocks 311 are integrally formed at two ends of the connecting plate 32, two clamping grooves 3111 are formed in the side wall, deviating from the positioning plate 31, of each positioning block 311, two positioning blocks 311 located on one side of the connecting plate 32 are respectively matched with two clamping grooves 3111 in a clamping mode, and two positioning blocks 311 located on the opposite side of the connecting plate 32 are respectively matched with two clamping grooves 3111 in the other positioning block 311 in a clamping mode, so that the two positioning blocks 311 are connected together. In the present embodiment, the clamping block 321 is a dovetail block, and the clamping groove 3111 is a dovetail groove. The clamping groove 3111 has a limiting effect on the clamping block 321, so that the clamping block 321 cannot slide in a direction away from the connecting plate 32.
Referring to fig. 2, in order to increase the convenience of the worker in installing the clamping block 321 in the clamping groove 3111, two mounting grooves 3112 are further formed in the side wall of the connecting plate 32, the two mounting grooves 3112 and the two clamping grooves 3111 are located on the same side wall of the connecting plate 32, and bottom ends of the two mounting grooves 3112 are respectively communicated with top ends of the two clamping grooves 3111. During the process of installing the outer template 3, a worker firstly places two connecting plates 32 on two outer side walls of the pier body 1 in the width direction respectively, then places two positioning plates 31 on two outer side walls of the pier body 1 in the length direction respectively, so that two clamping blocks 321 at two ends of each connecting plate 32 are aligned with two installing grooves 3112 on two positioning blocks 311 respectively, then moves the two positioning plates 31 towards the direction close to the pier body 1, so that the two clamping blocks 321 at two ends of each connecting plate 32 are located in the two installing grooves 3112 respectively, and then slides the two connecting plates 32 towards the direction close to the clamping grooves 3111 simultaneously, so that each clamping block 321 is inserted into the clamping groove 3111 from the inside of the installing groove 3112, two sides of each connecting plate 32 are connected with the two positioning blocks 311 respectively, convenience of installing the outer template by the worker is improved, and convenience of the outer template 3 of the worker is also improved.
Referring to fig. 1 and 2, two first positioning holes are formed in the first inner mold plate 21, and the two first positioning holes are distributed at intervals in the horizontal direction. The first outer membrane plate is provided with two second positioning holes 312, the two second positioning holes 312 are distributed at intervals along the horizontal direction, and the two first positioning holes are aligned with the two second positioning holes 312 respectively. Each of the first positioning holes and the second positioning holes 312 is internally provided with a pipeline 4 for installing the fixing component 5, and the fixing component 5 is arranged in the pipeline 4 in a penetrating way.
Referring to fig. 3, the fixing assembly 5 includes a fixing rod 51, a plurality of anti-falling blocks 52 and a sleeve 53, in this embodiment, the number of the anti-falling blocks 52 is four, the four anti-falling blocks 52 are slidably disposed at one end of the fixing rod 51, and an adjusting assembly 6 for driving the four anti-falling blocks 52 to slide toward a direction approaching to or separating from each other is disposed in the fixing rod 51. The fixed rod 51 is provided with external threads at one end far away from the anti-falling block 52, and the sleeve 53 is in threaded fit with the external threads. In order to increase the convenience of the worker to rotate the sleeve 53, two holding parts 531 are integrally formed on the outer side wall of the sleeve 53, and the worker rotates the sleeve 53 by rotating the holding parts 531, so that the labor-saving effect is achieved.
Referring to fig. 1 and 3, in the process of fixing the inner and outer formworks 2 and 3, a worker first passes through the adjustment assembly 6 to slide the four anti-falling blocks 52 toward each other, and passes one end of the fixing rod 51 near the anti-falling blocks 52 through the pipe 4. Then simultaneously adjusting the four anti-falling blocks 52 through the adjusting component 6 so that the four anti-falling blocks 52 slide towards the directions away from each other, then pulling the fixing rod 51 towards the direction close to the outer template 3 so that the side walls of the four anti-falling blocks 52 are abutted against the inner side walls of the inner template 2, and then rotating the sleeve 53 so that the sleeve 53 is abutted against the outer side walls of the positioning plate 31, the sleeve 53 and the four anti-falling blocks 52 have clamping effects on the outer template 3, the pier body 1 and the inner template 2, so that the outer template 3 and the inner template 2 have fixing effects.
Referring to fig. 4 and 5, the adjustment assembly 6 includes a rotating rod 61, a rotating member 62, a plurality of cranks 63 and a plurality of sliding members 64. The rotation hole 511 has been seted up to the axis direction of dead lever 51, and rotary rod 61 rotates to set up in rotation hole 511, and rotary rod 61 is close to the one end of outer bolster 3 and stretches out rotation hole 511, and the one end that rotary rod 61 stretched out first rotary rod 61 is fixed to be provided with hand wheel 65, and the staff rotates rotary rod 61 through rotatory hand wheel 65, has laborsaving effect. The fixed rod 51 is provided with a mounting hole 512 at one end close to the anti-drop block 52, the diameter of the mounting hole 512 is larger than that of the rotating hole 511, and the rotating member 62 is rotatably arranged in the mounting hole 512. The rotating member 62 includes a rotating shaft 621 and a rotating disc 622, one end of the rotating shaft 621 is fixedly connected with one end of the rotating rod 61, which is close to the anti-drop block 52, the rotating disc 622 is integrally formed on the rotating shaft 621, and the rotating disc 622 is coaxial with the rotating shaft 621.
Referring to fig. 3 and 5, an end cap 513 is integrally formed at one end of the mounting hole 512 remote from the rotation hole 511, and the other end of the rotation shaft 621 is rotatably connected to the end cap 513. Four sliding grooves 5131 are formed in the end cover 513, the four sliding grooves 5131 are uniformly distributed in the circumferential direction on the end cover 513, and the length directions of the four sliding grooves 5131 are the same as the length direction of the diameter of the end cover 513. In this embodiment, the number of the cranks 63 and the sliding members 64 is four, and the sliding members 64 are in one-to-one correspondence with the sliding grooves 5131. Each sliding member 64 comprises a sliding block 641 and a clamping block 642, the sliding block 641 is matched with the sliding groove 5131 in a sliding manner, the clamping block 642 is integrally formed with the sliding block 641, the clamping block 642 is abutted against the inner side wall of the end cover 513, the anti-falling block 52 is integrally formed with the sliding block 641, the anti-falling block 52 is abutted against the outer side wall of the end cover 513, the clamping block 642 and the anti-falling block 52 have a clamping effect on the end cover 513, and the sliding stability of the anti-falling block 52 is increased. The end of the anti-falling block 52, which is close to the rotary disk 622, is provided with two chamfers 522, and the end of the anti-falling block 52, which is away from the rotary disk 622, is provided with a second arc surface 521, and the radius of the second arc surface 521 is equal to that of the fixed rod 51, so that the sliding stroke of the four anti-falling blocks 52 is increased.
Referring to fig. 5, the cranks 63 are in one-to-one correspondence with the sliders 64, and one end of the cranks 63 is rotatably connected to the turntable. The side wall of the rotary disc 622, which is close to the rotary rod 61, is integrally provided with four first rotating shafts 6221, the side wall of the four clamping blocks 642, which is close to the rotary rod 61, is fixedly provided with second rotating shafts 6421, one end of each first rotating shaft 6221 penetrates through one end of the corresponding crank 63, each first rotating shaft 6221 is rotationally connected with the corresponding crank 63, each second rotating shaft 6421 penetrates through the other end of the corresponding crank 63, and each second rotating shaft 6421 is rotationally connected with the corresponding crank 63.
The working process of installing and dismantling each section of template by the staff is as follows:
The installation process comprises the following steps: during the process of installing each section of template, a worker rotates the rotating rod 61 through rotating the hand wheel 65, the rotating rod 61 drives the rotating shaft 621 to rotate, the rotating shaft 621 drives the rotating disc 622 to rotate, the rotating disc 622 simultaneously drives the four cranks 63 to move, the four cranks 63 respectively drive the four sliding pieces 64 to move towards directions close to each other, the worker passes the fixing rod 51 through the pipeline 4, then rotates the hand wheel 65 towards opposite directions, so that the four anti-falling blocks 52 move towards directions far away from each other, the four anti-falling blocks 52 are abutted against the inner side wall of the first inner template 21, and then the sleeve 53 is rotated through the rotating holding part 531, so that the end part of the sleeve 53 is abutted against the outer side wall of the positioning plate 31. The four anti-falling blocks 52 and the sleeves 53 have clamping action on the inner template 2, the pier body 1 and the outer template 3, so that the inner template 2 and the outer template 3 are fixed.
The disassembly process comprises the following steps: staff rotates rotary rod 61 through rotatory hand wheel 65 at the in-process of dismantling the template, rotary rod 61 drives the rotation axis 621 rotatory, rotation axis 621 drives rotary disk 622 rotation, rotary disk 622 drives four cranks 63 motion simultaneously, four cranks 63 drive four slider 64 respectively and move towards the direction that is close to each other, four slider 64 drive four anti-drop pieces 52 respectively and move towards the direction that is close to each other, the staff pulls dead lever 51 along the length direction of dead lever 51, thereby pull out dead lever 51 from in the pipeline 4, so that the staff need not get into pier body 1 inside the in-process of demolishing dead lever 51, not only increased the staff and demolishd the efficiency of dead lever 51, but also increased the convenience that the staff demolishd dead lever 51.
By adopting the structure, the bridge Gao Kongxin pier group turnover rapid construction method applied by the embodiment of the application comprises the following steps:
Step one: constructing a bearing platform 11;
Step two: constructing a bottom solid section;
Step three: constructing a middle hollow section, binding annular steel bars on the upper surface of a bearing platform 11, sequentially arranging three sections of templates along the vertical direction, wherein each section of template comprises an inner template 2 and an outer template 3, a pipeline 4 is arranged between the inner template 2 and the outer template 3 in a penetrating way, a fixing assembly 5 for fixing the inner template 2 and the outer template 3 is arranged in the pipeline 4, the fixing assembly 5 comprises a fixing rod 51, a plurality of anti-falling blocks 52 and a sleeve 53, the fixing rod 51 penetrates through the sleeve 53, the anti-falling blocks 52 are slidably arranged at one end of the fixing rod 51, and the anti-falling blocks 52 are abutted against the inner side wall of the inner template 2; a sleeve 53 is mounted on the other end of the fixed rod 51, and the sleeve 53 is abutted against the outer side wall of the outer die plate 3;
and fourthly, turning over the mould to construct, removing the fixing function of the fixing component 5 on the lower two-section mould plates, detaching the lower two-section mould plates from the pier body 1, turning over the lower two-section mould plates through a crane, turning over the lower two-section mould plates for two sections each time, taking the third section mould plate as a stabilizing and supporting layer, and starting to detach the lower two-section mould plates when the strength of the upper two-section concrete reaches the standard value, wherein the lower two-section mould plates are detached from bottom to top in sequence.
The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.
Claims (9)
1. The quick construction method for the viaduct Gao Kongxin pier group turnover formwork is characterized by comprising the following steps of:
step one: constructing a bearing platform (11);
Step two: constructing a bottom solid section;
Step three: the construction of middle part hollow section sets gradually three sections templates along vertical direction at cushion cap (11) upper surface ligature annular reinforcing bar, every section template all includes interior template (2) and exterior sheathing (3), interior template (2) with wear to be equipped with pipeline (4) between exterior sheathing (3), be provided with in pipeline (4) and be used for fixing interior template (2) with fixed subassembly (5) of exterior sheathing (3), fixed subassembly (5) include dead lever (51), a plurality of anticreep piece (52) and sleeve (53), dead lever (51) pass sleeve (53), a plurality of anticreep piece (52) all slide set up in the one end of dead lever (51), a plurality of anticreep piece (52) all butt in the inside wall of interior template (2); the sleeve (53) is mounted at the other end of the fixed rod (51), and the sleeve (53) is abutted against the outer side wall of the outer template (3); an adjusting assembly (6) is arranged in the fixed rod (51), and the adjusting assembly (6) comprises a rotating rod (61), a rotating piece (62), a plurality of cranks (63) and a plurality of sliding pieces (64);
A rotary hole (511) is formed in the axial direction of the fixed rod (51), the rotary rod (61) is rotatably arranged in the rotary hole (511), and one end, close to the outer die plate (3), of the rotary rod (61) extends out of the rotary hole (511);
The fixed rod (51) is provided with a mounting hole (512) near one end of the anti-falling block (52), the rotating piece (62) is arranged in the mounting hole (512), the rotating piece (62) comprises a rotating shaft (621) and a rotating disc (622), one end of the rotating shaft (621) is fixedly connected with the rotating rod (61), and the rotating disc (622) is fixed on the rotating rod (61); an end cover (513) is fixedly arranged at one end, far away from the rotary hole (511), of the mounting hole (512), and the other end of the rotary shaft (621) is rotationally connected with the end cover (513);
A plurality of sliding grooves (5131) are formed in the end cover (513); the sliding pieces (64) are in one-to-one correspondence with the sliding grooves (5131), and the sliding pieces (64) are in sliding fit with the sliding grooves (5131); the cranks (63) are in one-to-one correspondence with the sliding pieces (64), one end of each crank (63) is rotationally connected with the rotary disk (622), and the other end of each crank (63) is rotationally connected with the sliding piece (64);
And fourthly, turning over the mould to construct, removing the fixing function of the fixing component (5) on the lower two-section mould plates, detaching the lower two-section mould plates from the pier body (1), turning over the lower two-section mould plates through a crane, turning over the lower two-section mould plates for two sections each time, taking the third section mould plate as a stabilizing and supporting layer, and starting to detach the lower two-section mould plates when the strength of the upper two-section concrete reaches the standard value, wherein the lower two-section mould plates are detached from bottom to top in sequence.
2. The rapid construction method for the turnover formwork of the viaduct Gao Kongxin pier group according to claim 1, wherein the rapid construction method comprises the following steps: the sliding piece (64) comprises a sliding block (641) and a clamping block (642) which are fixedly connected, the sliding block (641) is in sliding fit with the sliding groove (5131), the clamping block (642) is fixed on the side wall, close to the rotating disc (622), of the sliding block (641), the side wall of the clamping block (642) is abutted to the inner side wall of the end cover (513), and the crank (63) is in rotating connection with the clamping block (642).
3. The rapid construction method for the viaduct Gao Kongxin pier group turnover formwork according to claim 2, wherein the method comprises the following steps: the side wall of the clamping block (642) deviating from the rotating shaft (621) is provided with a first arc surface, and the first arc surface is matched with the inner side wall of the mounting hole (512).
4. The rapid construction method for the turnover formwork of the viaduct Gao Kongxin pier group according to claim 1, wherein the rapid construction method comprises the following steps: a hand wheel (65) is fixedly arranged on the rotary rod (61).
5. The rapid construction method for the viaduct Gao Kongxin pier group turnover formwork of claim 4, wherein the rapid construction method comprises the following steps: one end of the anti-falling block (52) close to the rotary disc (622) is provided with two chamfers (522).
6. The rapid construction method for the viaduct Gao Kongxin pier group turnover formwork, which is characterized in that: one end of the anti-falling block (52) deviating from the rotary disk (622) is provided with a second arc surface (521).
7. The rapid construction method for the viaduct Gao Kongxin pier group turnover formwork of claim 6, wherein the rapid construction method comprises the following steps: the radius of the second arc surface (521) is equal to the radius of the fixed rod (51).
8. The rapid construction method for the viaduct Gao Kongxin pier group turnover formwork of claim 7, wherein the rapid construction method comprises the following steps: the sleeve (53) is in threaded engagement with the rotary rod (61).
9. The rapid construction method for the viaduct Gao Kongxin pier group turnover formwork of claim 8, wherein the rapid construction method comprises the following steps: the sleeve (53) is fixedly provided with a holding part (531).
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| CN214246580U (en) * | 2021-01-14 | 2021-09-21 | 中国建筑一局(集团)有限公司 | But reuse's plank sheathing is used in construction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN210658433U (en) * | 2019-07-18 | 2020-06-02 | 济邦建设集团有限公司 | Upward-inclined retaining wall turnover construction formwork |
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| GB1507304A (en) * | 1975-05-22 | 1978-04-12 | Bowden R | Shuttering or formwork for casting and moulding concrete in situ |
| CN108532466A (en) * | 2018-04-24 | 2018-09-14 | 成都华川公路建设集团有限公司 | A kind of bridge pier over-form construction technique |
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| CN114232480A (en) | 2022-03-25 |
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